CN212303771U - Battery temperature control switch - Google Patents
Battery temperature control switch Download PDFInfo
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- CN212303771U CN212303771U CN202021484296.6U CN202021484296U CN212303771U CN 212303771 U CN212303771 U CN 212303771U CN 202021484296 U CN202021484296 U CN 202021484296U CN 212303771 U CN212303771 U CN 212303771U
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- heat
- heat conduction
- battery
- temperature control
- control switch
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model provides a battery temperature control switch, including the casing, be equipped with the battery in the casing, be equipped with the thermal energy material in the casing, wear to be equipped with the inner of heat conduction slider in the thermal energy material, the outer end and the heat-conducting plate of heat conduction slider are relative. The utility model has the advantages that: the thermal expansion material (preferably paraffin) is used as a phase change material for pushing the heat pipe to slide, and the physical characteristics of phase change, volume expansion, paraffin cooling and condensation and volume reduction caused by heating the paraffin are utilized, so that the heat pipe and the heat conduction plate are pushed to be automatically connected and disconnected according to different temperatures, and the heat transfer speed between the battery and the outside is controlled. The whole system has the advantages of simple structure, low cost, no need of consuming external energy, spontaneous heat transfer, no need of a control unit, improved system reliability, good sealing property, repeatable operation and long service life.
Description
Technical Field
The utility model relates to an electric automobile battery temperature control device especially indicates a battery temperature control switch.
Background
The common fuel cell for the electric automobile has the advantages of high energy density, high energy efficiency conversion rate, energy conservation, environmental protection and the like, and the electric automobile has a certain trend to replace the traditional fuel oil automobile. However, the charging and discharging efficiency of the fuel cell is greatly influenced by the temperature of the working environment, and how to ensure that the cell is in a proper working temperature range is a main factor for restricting the wide application and popularization of the electric automobile in the alpine region in China.
Under general conditions, a plurality of pure electric passenger cars which can be normally used in southern areas and have excellent performance can hardly be started in extremely high and cold climates, and even if the cars can be driven, the driving range is greatly reduced. The reason is that the pure electric passenger car is greatly influenced by the climate environment, the battery charging and discharging process of the electric car is greatly influenced by the temperature, and the external environment temperature in the alpine region is lower, so that the chemical reaction efficiency of the battery in the charging and discharging process is reduced, the economic efficiency of the electric car in the alpine region is reduced, the service efficiency and the service life of the battery are greatly reduced, and the quick popularization of the battery is not facilitated.
The cold regions in China are vast, severe cold regions have great market demands on pure electric passenger vehicles, and in order to ensure that the pure electric passenger vehicles can be normally charged, started and driven in severe cold climate environments and can reach a certain driving range, higher requirements on the aspects of charging, discharging, driving, heat preservation and the like of the pure electric passenger vehicles in severe cold environments are required.
SUMMERY OF THE UTILITY MODEL
The utility model provides a battery temperature control switch can manage and control the heat transfer between battery module and the external environment, through heat switch adjustment heat transfer passageway aperture, makes the battery be in the temperature interval of high-efficient during operation always, can solve the not good problem of high and cold district electric automobile result of use.
The technical scheme of the utility model is realized like this: a battery temperature control switch comprises a shell, wherein a battery is arranged in the shell, a thermal expansion material is arranged in the shell, the inner end of a heat conduction sliding block is arranged in the thermal expansion material in a penetrating mode, and the outer end of the heat conduction sliding block is opposite to a heat conduction plate.
The shell is a heat-insulating shell.
And a separator is arranged between the battery and the thermal expansion material.
The baffle is U-shaped in cross section.
The thermal expansion material is a phase change material.
The phase-change material is paraffin.
The heat conducting slide block is internally provided with a heat pipe.
The heat conduction sliding block is of a T-shaped section.
The shell body is provided with a mounting plate, and the heat conduction sliding block is arranged on the mounting plate in a penetrating mode.
The shell is provided with a cover body, the heat conduction sliding block is arranged on the cover body in a penetrating mode, the heat conduction sliding block is provided with a baffle, and a spring is arranged between the front end face of the baffle and the cover body.
The utility model has the advantages that: the thermal expansion material (preferably paraffin) is used as a phase change material for pushing the heat pipe to slide, and the physical characteristics of phase change, volume expansion, paraffin cooling and condensation and volume reduction caused by heating the paraffin are utilized, so that the heat pipe and the heat conduction plate are pushed to be automatically connected and disconnected according to different temperatures, and the heat transfer speed between the battery and the outside is controlled. The whole system has the advantages of simple structure, low cost, no need of consuming external energy, spontaneous heat transfer, no need of a control unit, improved system reliability, good sealing property, repeatable operation and long service life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic sectional view (in operation) of the present invention.
Fig. 2 is a schematic sectional structure (when broken) of the present invention.
In the figure: 1-battery, 2-shell, 3-clapboard, 4-thermal expansion material, 5-heat pipe, 6-spring, 7-heat conduction slide block, 8-heat conduction plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 1 and 2, a battery temperature control switch includes a battery 1, a case 2, a separator 3, a thermal expansion material 4, a heat pipe 5, a spring 6, a heat conductive slider 7, and a heat conductive plate 8. The shell 2 is a heat-insulating shell, and separates internal heat and external heat, so that the dissipation of the internal heat is avoided. The battery 1, the partition plate 3 and the thermal expansion material 4 are arranged in the shell 2, the mounting plate, the cover body, the spring 6 and the heat conducting plate 8 are arranged outside the shell, and the heat conducting sliding block 7 is arranged on the shell 2 in a penetrating mode.
The separator 3 is provided between the battery 1 and the thermal expansion material 4, the battery 1 is provided outside the separator 3, the thermal expansion material is provided inside the separator 3, and the separator separates the two parts and also enables heat transfer. The partition plate 3 is provided with a U-shaped cross section, so that the thermal expansion material has a certain depth, and the heat conduction sliding block is ensured to be vertically penetrated and stretched for a certain distance.
The thermal expansion material 4 is a phase change material, the phase change material is paraffin with a melting point of about 30 ℃, and the paraffin melts and expands when being heated and condenses and shrinks when being cooled. Be equipped with the mounting panel on the casing 2, heat conduction slider 7 wears to establish on the mounting panel, is equipped with the cover body on the mounting panel, and on heat conduction slider 7 wore to establish the cover body simultaneously, is equipped with the baffle on the heat conduction slider 7, is equipped with spring 6 between the preceding terminal surface of baffle and the cover body. Under normal conditions, the spring passes through the baffle and presses and establish the heat conduction slider for heat conduction slider and heat-conducting plate separation, when the battery temperature is high, the paraffin need overcome the spring resistance and release the heat conduction slider.
A heat conduction sliding block 7 is arranged in the thermal expansion material 4 in a penetrating way, and the heat conduction sliding block is made of stainless steel. The heat-conducting slide block 7 is a T-shaped section, the cylinder at the inner end can be stretched under the action of paraffin, and the circular plate at the outer end is opposite to the heat-conducting plate 8, so that the attachment of a larger heat-radiating area is ensured. The heat pipe 5 is arranged in the heat conduction sliding block 7, and the heat pipe is a common gravity heat pipe, so that the overall heat transfer effect is improved.
In alpine regions, electric automobile battery charge-discharge in-process, its battery temperature can rise gradually, and the heat of production needs in time to be discharged to guarantee that the battery is in suitable operating temperature, simultaneously in non-operating time period, because external environment temperature is lower, can arouse that the inside temperature of battery module is on the low side, it is limited to lead to the battery to fill the electric quantity of entering, and the electric quantity consumption is also very fast, appears the condition that is difficult to the start even.
When the battery works, heat emitted from the interior of the battery is transferred to the phase-change material paraffin through the intermediate partition plate, the paraffin is heated and melted, and the volume of the paraffin gradually expands and becomes larger. Because the heat conducting sliding blocks are arranged in the closed space, the internal pressure of the heat conducting sliding blocks is gradually increased along with the increase of the volume of the paraffin, and the pressure born by the corresponding heat conducting sliding blocks is also gradually increased. Finally, under the condition that paraffin absorbs the heat volume expansion generated by the work of the battery, the heat conduction sliding block gradually slides and is in contact with the external heat conduction plate, heat is transferred to the heat conduction plate through the heat pipe in the heat conduction sliding block, the heat transfer mode is heat conduction, the heat transfer is fast, the efficiency is high, and the heat generated by the work of the battery is favorably and quickly discharged.
The larger the paraffin expansion deformation is, the larger the generated expansion pressure is, the tighter the heat conduction sliding block is contacted with an external heat conduction plate, the smaller the heat conduction contact thermal resistance is, and the higher the heat conduction efficiency is. The heat pipe is implanted in the heat conduction sliding block, so that heat can be quickly transferred, and the heat transferred to the heat conduction plate can be quickly carried by the air cooling or liquid cooling mode of the fins, so that the heat generated during the working of the battery can be quickly dissipated.
When the battery stops operating, no heat is generated inside the battery. However, because the external environment temperature is lower, the heat inside the paraffin still transfers to the outside through the heat-conducting sliding block and the heat-conducting plate, the volume also gradually decreases along with the gradual reduction of the heat inside the paraffin, the paraffin gradually condenses to a solid state from a liquid state, in the process, the volume of the paraffin decreases, the internal pressure also decreases along with the decrease of the heat inside the paraffin, the heat-conducting sliding block is gradually separated from the heat-conducting plate under the action of the elasticity of a spring or gravity, the heat transfer mode between the heat-conducting sliding block and the heat-conducting plate is changed from heat conduction to natural convection heat exchange, the heat transfer coefficient is reduced by two to three orders of magnitude, namely, the heat inside the paraffin is difficult to transfer to the outside in.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a battery temperature detect switch, includes casing (2), is equipped with battery (1) in casing (2), its characterized in that: the heat conduction type heat conduction device is characterized in that a thermal expansion material (4) is arranged in the shell (2), the inner end of a heat conduction sliding block (7) is arranged in the thermal expansion material (4) in a penetrating mode, and the outer end of the heat conduction sliding block (7) is opposite to the heat conduction plate (8).
2. The battery temperature control switch according to claim 1, wherein: the shell (2) is a heat-insulating shell.
3. The battery temperature control switch according to claim 1, wherein: a separator (3) is arranged between the battery (1) and the thermal expansion material (4).
4. The battery temperature control switch according to claim 3, wherein: the partition plate (3) is U-shaped in cross section.
5. The battery temperature control switch according to claim 1, wherein: the thermal expansion material (4) is a phase change material.
6. The battery temperature control switch according to claim 5, wherein: the phase-change material is paraffin.
7. The battery temperature control switch according to claim 1, wherein: the heat conducting sliding block (7) is internally provided with a heat pipe (5).
8. The battery temperature control switch according to claim 1, wherein: the heat-conducting sliding block (7) is of a T-shaped section.
9. The battery temperature control switch according to claim 1, wherein: the shell (2) is provided with a mounting plate, and the heat-conducting sliding block (7) is arranged on the mounting plate in a penetrating mode.
10. The battery temperature control switch according to claim 1 or 9, characterized in that: the shell (2) is provided with a cover body, the heat conduction sliding block (7) is arranged on the cover body in a penetrating mode, the heat conduction sliding block (7) is provided with a baffle, and a spring (6) is arranged between the front end face of the baffle and the cover body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021484296.6U CN212303771U (en) | 2020-07-24 | 2020-07-24 | Battery temperature control switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021484296.6U CN212303771U (en) | 2020-07-24 | 2020-07-24 | Battery temperature control switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212303771U true CN212303771U (en) | 2021-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021484296.6U Active CN212303771U (en) | 2020-07-24 | 2020-07-24 | Battery temperature control switch |
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| CN (1) | CN212303771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113097599A (en) * | 2021-04-07 | 2021-07-09 | 华北电力大学 | Passive battery thermal regulator based on super-cooled phase-change material, method and management system |
-
2020
- 2020-07-24 CN CN202021484296.6U patent/CN212303771U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113097599A (en) * | 2021-04-07 | 2021-07-09 | 华北电力大学 | Passive battery thermal regulator based on super-cooled phase-change material, method and management system |
| CN113097599B (en) * | 2021-04-07 | 2022-07-01 | 华北电力大学 | Passive battery thermal regulator based on super-cooled phase-change material, method and management system |
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